white crystalline powder, odorless, loading density of 0.44-0.52m / cc. This product is hygroscopic, soluble in water, not in ethanol, methanol and other organic solvents
Used for pharmaceutical intermediates, biochemical research, composite amino acid formulations, peptide synthesis of raw materials. Treatment of liver cirrhosis, disease recovery and enhance physical fitness, enhance human immunity, anti-fatigue, is conducive to human health.
|
Item |
Specification |
Result |
|
Appearance |
White crystalline powder |
White crystalline powder |
|
Transmittance |
NLT 98.0% |
98.2 % |
|
Assay |
99.0~101.0% |
99.2% |
|
Solubility |
Very soluble in water |
Conforms |
|
pH |
5.0~6.0 (10% H20) |
5.1 |
|
Specific rotation[α]D20 |
+22.5°~+24.5° |
+23.74° |
|
Loss on drying |
NMT 0.2% |
0.17% |
|
Residue on ignition |
NMT 0.10% |
0.05% |
|
Heavy metals (as Pb) |
NMT 10ppm |
<10ppm |
|
Arsenic |
NMT 1ppm |
<1ppm |
|
Sulfate |
NMT 200ppm |
<200ppm |
|
Ammonium (NH4) |
NMT 200ppm |
<200ppm |
|
Fe |
NMT 10ppm |
<10ppm |
|
Other Amino acids |
Not detectable |
Conforms |
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